“Like it or not, I’m coming back to the show again,” Walters teased her co-hosts during a live call-in to the show on Tuesday. “No more chicken pox… I haven’t been contagious for a while, but they wanted me to have rest, and I’ve had enough rest and I’m ready to come back.

Chicken pox is rare among adults thanks to a vaccine introduced in 1995, but according to ABC News’ chief health and medical editor Dr. Richard Besser: “It needs to be taken seriously since adults are at increased risk of complications, including pneumonia, brain inflammation and bacterial skin infections.”

On Jan. 22, Walters fainted and struck her head, cutting her temple, while at the British ambassador’s residence for President Obama’s inauguration. The fall resulted in a concussion and she received six stitches. On Jan. 28, Walters was diagnosed with chicken pox, which affects one in 10,000 American men and women each year, according to the U.S. Centers for Disease Control and Prevention.